kopia lustrzana https://github.com/bristol-seds/pico-tracker
65 wiersze
1.9 KiB
C
65 wiersze
1.9 KiB
C
/*
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* Functions for controlling and calibrating against the external oscillator
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* Copyright (C) 2014 Richard Meadows <richardeoin>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef XOSC_H
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#define XOSC_H
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#include "samd20.h"
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enum xosc_measurement_t {
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XOSC_MEASURE_TIMEPULSE,
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XOSC_MEASURE_LFTIMER,
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};
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typedef void (*measurement_result_t)(uint32_t result);
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/** HF Clock */
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void hf_clock_init(void);
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void hf_clock_enable(void);
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void hf_clock_disable(void);
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/** LF Clock */
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void lf_clock_startup(void);
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/** GCLK0 */
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void gclk0_to_hf_clock(void);
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void gclk0_to_lf_clock(void);
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/** GCLK1 */
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void gclk1_init(void);
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/** GLCK2 */
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void gclk2_init(void);
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/** Measurement */
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void measure_xosc(enum xosc_measurement_t measurement_t, measurement_result_t callback, uint8_t oneshot);
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void measure_xosc_disable(enum xosc_measurement_t measurement_t);
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/** LF Timer */
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void lf_tick_start(void);
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void lf_tick_stop(void);
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#endif /* XOSC_H */
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